142 CONCHYLIA— D/THFEJ. 36. 



Chemnitz, vi. p. 306, tab. 29, fig. 301. 302. 



Pennant, iv. p. 202, tab. 57 fig. 2. 



Montagu, Test. Brit. Suppl. p. 47- 



Linn. Trans, viii. p. 79, tab. 2. fig. 1. 



Turton, British Fauna, p. 157. 



Dillwyn, Descript. Catal. p. 165. 



Turton, Conch Diet. p. 232, 

 Pectunculus membranaceus. Da Costa, Brit. Conch, p. 193, tab. 



13, fig. 4, left hand 

 Mus. nost. Western and Irish coasts. 



Shell two inches in diameter, whitish or rusty brown, finely round- 

 ed in the circumference, with thin transverse plates curving towards 

 the hinge, and nearly meeting each other in an imbricate manner ; 

 but not reflected at the sides nor breaking into tubercles : one of the 

 lips of the area carinate and striate. 



We have a variety dredged at Liverpool, in which the margin is 

 extremely obtuse and nearly half an inch thick, with the crenatures 

 or notches on the outside. 



reflexa, Venus testd stilorbiculari compressiuscuJd, latere antico suhtruncato, 

 laminis transversis antic^ reflexis, areola lanceolatd carinatd. 

 Shell somewhat orbicular and rather compressed, a little truncate nt 

 the anterior side where the transverse plates are reflected, and 

 the areola lanceolate and carinate. 



Tab nost. 10, fig. 1, 2. 

 Venus reflexa. Montagu, Suppl. p. 40. and 168 



Laskey, Weru. Soc. i. p. 384, tab. 8, fig. I, 



3. 



